de.lmu.ifi.dbs.elki.result.textwriter
Class TextWriter

java.lang.Object
  de.lmu.ifi.dbs.elki.result.textwriter.TextWriter

public class TextWriter
extends Object

Class to write a result to human-readable text output

Field Summary

static String	FILE_EXTENSION Extension for txt-files.
protected Map<String,Object>	filenames For producing unique filenames.
static HandlerList<TextWriterWriterInterface<?>>	writers Hash map for supported classes in writer.

Constructor Summary

TextWriter()

Method Summary

private String	filenameFromLabel(String label) Derive a file name from the cluster label.
protected String	getFilename(Object result, String filenamepre) Try to find a unique file name.
void	output(Database db, Result r, StreamFactory streamOpener) Stream output.
private void	printObject(TextWriterStream out, Database db, DBID objID, List<Relation<?>> ra)
protected void	printSettings(TextWriterStream out, List<SettingsResult> sr) Writes a header providing information concerning the underlying database and the specified parameter-settings.
private void	writeClusterResult(Database db, StreamFactory streamOpener, Cluster<?> clus, List<Relation<?>> ra, NamingScheme naming, List<SettingsResult> sr)
private void	writeIterableResult(StreamFactory streamOpener, IterableResult<?> ri, List<SettingsResult> sr)
private void	writeOrderingResult(Database db, StreamFactory streamOpener, OrderingResult or, List<Relation<?>> ra, List<SettingsResult> sr)
private void	writeOtherResult(StreamFactory streamOpener, Result r, List<SettingsResult> rs)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

FILE_EXTENSION

public static final String FILE_EXTENSION

Extension for txt-files.

See Also:

Constant Field Values

writers

public static final HandlerList<TextWriterWriterInterface<?>> writers

Hash map for supported classes in writer.

filenames

protected Map<String,Object> filenames

For producing unique filenames.

Constructor Detail

TextWriter

public TextWriter()

Method Detail

getFilename

protected String getFilename(Object result,
                             String filenamepre)

Try to find a unique file name.

Parameters:

result - Result we print

filenamepre - File name prefix to use

Returns:

unique filename

printSettings

protected void printSettings(TextWriterStream out,
                             List<SettingsResult> sr)

Writes a header providing information concerning the underlying database and the specified parameter-settings.

Parameters:

out - the print stream where to write

sr - the settings to be written into the header

output

public void output(Database db,
                   Result r,
                   StreamFactory streamOpener)
            throws UnableToComplyException,
                   IOException

Stream output.

Parameters:

db - Database object

r - Result class

streamOpener - output stream manager

Throws:

UnableToComplyException - when no usable results were found

IOException - on IO error

printObject

private void printObject(TextWriterStream out,
                         Database db,
                         DBID objID,
                         List<Relation<?>> ra)
                  throws UnableToComplyException,
                         IOException

Throws:

UnableToComplyException

IOException

writeOtherResult

private void writeOtherResult(StreamFactory streamOpener,
                              Result r,
                              List<SettingsResult> rs)
                       throws UnableToComplyException,
                              IOException

Throws:

UnableToComplyException

IOException

writeClusterResult

private void writeClusterResult(Database db,
                                StreamFactory streamOpener,
                                Cluster<?> clus,
                                List<Relation<?>> ra,
                                NamingScheme naming,
                                List<SettingsResult> sr)
                         throws FileNotFoundException,
                                UnableToComplyException,
                                IOException

Throws:

FileNotFoundException

UnableToComplyException

IOException

writeIterableResult

private void writeIterableResult(StreamFactory streamOpener,
                                 IterableResult<?> ri,
                                 List<SettingsResult> sr)
                          throws UnableToComplyException,
                                 IOException

Throws:

UnableToComplyException

IOException

writeOrderingResult

private void writeOrderingResult(Database db,
                                 StreamFactory streamOpener,
                                 OrderingResult or,
                                 List<Relation<?>> ra,
                                 List<SettingsResult> sr)
                          throws IOException,
                                 UnableToComplyException

Throws:

IOException

UnableToComplyException

filenameFromLabel

private String filenameFromLabel(String label)

Derive a file name from the cluster label.

Parameters:

label - cluster label

Returns:

cleaned label suitable for file names.